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videodecoder: Drain decoder on DISCONT buffers

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This ensures the decoder is properly drained out when receiving a
DISCONT buffer. The optimal way of doing this would have been to
receive a GAP event before hand but it is not always possible.

Fixes big delays with some decoders (ex gst-libav) that will not
drain out data when only decoding keyframes.

https://bugzilla.gnome.org/show_bug.cgi?id=767232
This commit is contained in:
Edward Hervey 2016-06-04 09:49:00 +02:00 committed by Edward Hervey
parent ac56c1c3a7
commit eb1ebf226f
1 changed files with 3 additions and 0 deletions
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3
gst-libs/gst/video/gstvideodecoder.c
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@ -2179,6 +2179,9 @@ gst_video_decoder_chain_forward (GstVideoDecoder * decoder,
g_return_val_if_fail (priv->packetized || klass->parse, GST_FLOW_ERROR);
if (GST_BUFFER_IS_DISCONT (buf))
ret = gst_video_decoder_drain_out (decoder, FALSE);
if (priv->current_frame == NULL)
priv->current_frame = gst_video_decoder_new_frame (decoder);